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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #ifndef PULSEVIEW_PV_SIGNAL_H | |
22 | #define PULSEVIEW_PV_SIGNAL_H | |
23 | ||
24 | #include <boost/shared_ptr.hpp> | |
25 | ||
26 | #include <QColor> | |
27 | #include <QComboBox> | |
28 | #include <QPainter> | |
29 | #include <QPen> | |
30 | #include <QRect> | |
31 | #include <QString> | |
32 | #include <QWidgetAction> | |
33 | ||
34 | #include <stdint.h> | |
35 | ||
36 | #include <libsigrok/libsigrok.h> | |
37 | ||
38 | #include "selectableitem.h" | |
39 | ||
40 | namespace pv { | |
41 | ||
42 | namespace data { | |
43 | class SignalData; | |
44 | } | |
45 | ||
46 | namespace view { | |
47 | ||
48 | class Signal : public SelectableItem | |
49 | { | |
50 | Q_OBJECT | |
51 | ||
52 | private: | |
53 | static const int LabelHitPadding; | |
54 | ||
55 | static const QPen SignalAxisPen; | |
56 | ||
57 | protected: | |
58 | Signal(const sr_probe *const probe); | |
59 | ||
60 | public: | |
61 | /** | |
62 | * Gets the name of this signal. | |
63 | */ | |
64 | QString get_name() const; | |
65 | ||
66 | /** | |
67 | * Sets the name of the signal. | |
68 | */ | |
69 | void set_name(QString name); | |
70 | ||
71 | /** | |
72 | * Get the colour of the signal. | |
73 | */ | |
74 | QColor get_colour() const; | |
75 | ||
76 | /** | |
77 | * Set the colour of the signal. | |
78 | */ | |
79 | void set_colour(QColor colour); | |
80 | ||
81 | /** | |
82 | * Gets the vertical layout offset of this signal. | |
83 | */ | |
84 | int get_v_offset() const; | |
85 | ||
86 | /** | |
87 | * Sets the vertical layout offset of this signal. | |
88 | */ | |
89 | void set_v_offset(int v_offset); | |
90 | ||
91 | /** | |
92 | * Paints the signal with a QPainter | |
93 | * @param p the QPainter to paint into. | |
94 | * @param y the y-coordinate to draw the signal at | |
95 | * @param left the x-coordinate of the left edge of the signal | |
96 | * @param right the x-coordinate of the right edge of the signal | |
97 | * @param scale the scale in seconds per pixel. | |
98 | * @param offset the time to show at the left hand edge of | |
99 | * the view in seconds. | |
100 | **/ | |
101 | virtual void paint(QPainter &p, int y, int left, int right, | |
102 | double scale, double offset) = 0; | |
103 | ||
104 | /** | |
105 | * Paints the signal label into a QGLWidget. | |
106 | * @param p the QPainter to paint into. | |
107 | * @param y the y-coordinate of the signal. | |
108 | * @param right the x-coordinate of the right edge of the header | |
109 | * area. | |
110 | * @param hover true if the label is being hovered over by the mouse. | |
111 | */ | |
112 | virtual void paint_label(QPainter &p, int y, int right, | |
113 | bool hover); | |
114 | ||
115 | /** | |
116 | * Determines if a point is in the header label rect. | |
117 | * @param y the y-coordinate of the signal. | |
118 | * @param left the x-coordinate of the left edge of the header | |
119 | * area. | |
120 | * @param right the x-coordinate of the right edge of the header | |
121 | * area. | |
122 | * @param point the point to test. | |
123 | */ | |
124 | bool pt_in_label_rect(int y, int left, int right, | |
125 | const QPoint &point); | |
126 | ||
127 | protected: | |
128 | ||
129 | /** | |
130 | * Paints a zero axis across the viewport. | |
131 | * @param p the QPainter to paint into. | |
132 | * @param y the y-offset of the axis. | |
133 | * @param left the x-coordinate of the left edge of the view. | |
134 | * @param right the x-coordinate of the right edge of the view. | |
135 | */ | |
136 | void paint_axis(QPainter &p, int y, int left, int right); | |
137 | ||
138 | private: | |
139 | ||
140 | /** | |
141 | * Computes an caches the size of the label text. | |
142 | */ | |
143 | void compute_text_size(QPainter &p); | |
144 | ||
145 | /** | |
146 | * Computes the outline rectangle of a label. | |
147 | * @param p the QPainter to lay out text with. | |
148 | * @param y the y-coordinate of the signal. | |
149 | * @param right the x-coordinate of the right edge of the header | |
150 | * area. | |
151 | * @return Returns the rectangle of the signal label. | |
152 | */ | |
153 | QRectF get_label_rect(int y, int right); | |
154 | ||
155 | private slots: | |
156 | void on_text_changed(const QString &text); | |
157 | ||
158 | signals: | |
159 | void text_changed(); | |
160 | ||
161 | protected: | |
162 | const sr_probe *const _probe; | |
163 | ||
164 | QString _name; | |
165 | QColor _colour; | |
166 | int _v_offset; | |
167 | ||
168 | QSizeF _text_size; | |
169 | ||
170 | QWidgetAction _name_action; | |
171 | QComboBox _name_widget; | |
172 | bool _updating_name_widget; | |
173 | }; | |
174 | ||
175 | } // namespace view | |
176 | } // namespace pv | |
177 | ||
178 | #endif // PULSEVIEW_PV_SIGNAL_H |